Tatiana,
I had the same issue. Have now resolved problem and answered my own question!
In the style sheet, take .categoryListBoxContents out of the stylesheet line that has all this in it:
.centeredContent, TH, #cartEmptyText, #cartBoxGVButton, #navNextPrevWrapperTop, #navNextPrevWrapperBottom, #navCatTabsWrapper, #navEZPageNextPrev, #bannerOne, #bannerTwo, #bannerFour, #bannerFive, #bannerSix, #siteinfoLegal, #siteinfoCredits, #siteinfoStatus, #siteinfoIP, .center, .cartRemoveItemDisplay, .cartQuantityUpdate, .cartQuantity, .cartTotalsDisplay, #cartBoxGVBalance, .accountQuantityDisplay, .ratingRow, LABEL#textAreaReviews, #productMainImage, #reviewsInfoDefaultProductImage, #productReviewsDefaultProductImage, #reviewWriteMainImage, .categoryListBoxContents, .centerBoxContents, .specialsListBoxContents, .additionalImages, .centerBoxContentsSpecials, .centerBoxContentsAlsoPurch, .centerBoxContentsFeatured, .centerBoxContentsNew, .gvBal, .attribImg {
You can search for category to find it.
Then below that add the following which should enable you to style the category listings separately from rest of content:
.categoryListBoxContents { /insert, taken out of centred content/
margin-left: -5px;
margin-bottom: 9px;
}